Prossbly the 1960s...
then 1973 take a brand new subaru 1400 GSR for a test drive
then head to the 1970s. invest some money some where.
go to about 1983/84 to see possum racing his 1st Subaru RX.
Then buy a new RX and buy a very tidy GSR and GFT prepay a site for and park them up on blocks. checking them every 6months etc.
and lots more lol